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 | Ehleringer, James R. | Burning coal seams in southern Utah: a natural system for studies of plant responses to elevated CO2 | In the Burning Hills and Smoky Mountains of southern Utah (USA), coal deposits exposed to the surface have been ignited by lightning and have been burning for periods of years to over a century. We examined one of these sites, where the below-ground combustion of this low-sulfur coal releases gases ... | Coal fires; Elevated CO2; Isotope ratios; Atriplex confertifolia; Salsola iberica; Gutierrezia sarothrae | 1997 |
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